title: Preparation of low water-sorption lightweight aggregates from harbor sediment added with waste glass.
abstract: A harbor sediment is successfully recycled at 1150 °C as low water-absorption lightweight aggregate via addition of waste glass powder. Sodium content in the waste glass is responsible for the formation of low-viscosity viscous phases during firing process to encapsulate the gases generated for bloating pellet samples. Water sorption capacity of the lightweight products can be considerably reduced from 5.6% to 1.5% with the addition of waste glass powder. Low water-absorption property of lightweight products is beneficial for preparing lightweight concrete because the water required for curing the cement would not be seized by lightweight aggregate filler, thus preventing the failure of long-term concrete strength.
authors.affiliation: Department of Environmental Science and Engineering, Tunghai University, Taichung City 407, Taiwan. yulin@thu.edu.tw
authors.forename: Yu-Ling
authors.initials: YL
authors.lastname: Wei
authors.forename: Chang-Yuan
authors.initials: CY
authors.lastname: Lin
authors.forename: Kuan-Wei
authors.initials: KW
authors.lastname: Ko
authors.forename: H Paul
authors.initials: HP
authors.lastname: Wang
mesh_terms: D000327:Adsorption; D003247:Conservation of Natural Resources; D003252:Construction Materials; D019015:Geologic Sediments / Q000737:chemistry*; D005898:Glass / Q000737:chemistry*; D006361:Heating; D008420:Manufactured Materials; D008422:Materials Testing; D012623:Seawater / Q000737:chemistry; D018505:Waste Management / Q000379:methods*; D014866:Waste Products
chemical_list: D014866:Waste Products